Abstract
Large space structures tend to be flexible because only a few dimensions become large while material properties become constant. For flexible structures, even minute disturbances affect the movement of the structure. For the sake of precise observation in space, large structures with stable dynamic properties are required to support sensors. The stability of the structures is affected by the thermal expansion caused by solar radiation. The purpose of this research is to verify the compatibility between numerical analyses and experimental results for a mast structure with thermally induced stick-slip phenomenon at friction sliding part. Radiation heating experiments for the mast structure, and numerical analyses using finite element method with several friction models at contact surface among parts in the mast were discussed. Three friction models are: (a) coulomb model, (b) simplified coulomb model, and (c) rising static friction model. Comparing each friction model, modeling on thermally induced stick-slip occurring in the space structure is studied. The coulomb model and the rising static friction model showed thermally induced stick-slip behavior. However, the simplified coulomb model did not show such behaviors. Finally, several methods were proposed to decrease the disturbance due to thermally induced stick-slip.
| Original language | English |
|---|---|
| Title of host publication | AIAA Scitech 2019 Forum |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| ISBN (Print) | 9781624105784 |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
| Event | AIAA Scitech Forum, 2019 - San Diego, United States Duration: 2019 Jan 7 → 2019 Jan 11 |
Publication series
| Name | AIAA Scitech 2019 Forum |
|---|
Conference
| Conference | AIAA Scitech Forum, 2019 |
|---|---|
| Country | United States |
| City | San Diego |
| Period | 19/1/7 → 19/1/11 |
Fingerprint
ASJC Scopus subject areas
- Aerospace Engineering
Cite this
Structural analysis of thermally induced stick-slip on deployable mast. / Shimizu, Shunnosuke; Ishimura, Kosei; Parque Tenorio, Victor; Miyashita, Tomoyuki.
AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Scitech 2019 Forum).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Structural analysis of thermally induced stick-slip on deployable mast
AU - Shimizu, Shunnosuke
AU - Ishimura, Kosei
AU - Parque Tenorio, Victor
AU - Miyashita, Tomoyuki
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Large space structures tend to be flexible because only a few dimensions become large while material properties become constant. For flexible structures, even minute disturbances affect the movement of the structure. For the sake of precise observation in space, large structures with stable dynamic properties are required to support sensors. The stability of the structures is affected by the thermal expansion caused by solar radiation. The purpose of this research is to verify the compatibility between numerical analyses and experimental results for a mast structure with thermally induced stick-slip phenomenon at friction sliding part. Radiation heating experiments for the mast structure, and numerical analyses using finite element method with several friction models at contact surface among parts in the mast were discussed. Three friction models are: (a) coulomb model, (b) simplified coulomb model, and (c) rising static friction model. Comparing each friction model, modeling on thermally induced stick-slip occurring in the space structure is studied. The coulomb model and the rising static friction model showed thermally induced stick-slip behavior. However, the simplified coulomb model did not show such behaviors. Finally, several methods were proposed to decrease the disturbance due to thermally induced stick-slip.
AB - Large space structures tend to be flexible because only a few dimensions become large while material properties become constant. For flexible structures, even minute disturbances affect the movement of the structure. For the sake of precise observation in space, large structures with stable dynamic properties are required to support sensors. The stability of the structures is affected by the thermal expansion caused by solar radiation. The purpose of this research is to verify the compatibility between numerical analyses and experimental results for a mast structure with thermally induced stick-slip phenomenon at friction sliding part. Radiation heating experiments for the mast structure, and numerical analyses using finite element method with several friction models at contact surface among parts in the mast were discussed. Three friction models are: (a) coulomb model, (b) simplified coulomb model, and (c) rising static friction model. Comparing each friction model, modeling on thermally induced stick-slip occurring in the space structure is studied. The coulomb model and the rising static friction model showed thermally induced stick-slip behavior. However, the simplified coulomb model did not show such behaviors. Finally, several methods were proposed to decrease the disturbance due to thermally induced stick-slip.
UR - http://www.scopus.com/inward/record.url?scp=85068480626&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068480626&partnerID=8YFLogxK
U2 - 10.2514/6.2019-1025
DO - 10.2514/6.2019-1025
M3 - Conference contribution
AN - SCOPUS:85068480626
SN - 9781624105784
T3 - AIAA Scitech 2019 Forum
BT - AIAA Scitech 2019 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
ER -